Messages in this thread Patch in this message | | | From | Colin King <> | Subject | [PATCH] xen/pvcalls: fix null pointer dereference on map->sock | Date | Thu, 22 Feb 2018 17:22:59 +0000 |
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From: Colin Ian King <colin.king@canonical.com>
Currently if map is null then a potential null pointer deference occurs when calling sock_release on map->sock. I believe the actual intention was to call sock_release on sock instead. Fix this.
Fixes: 5db4d286a8ef ("xen/pvcalls: implement connect command") Signed-off-by: Colin Ian King <colin.king@canonical.com> --- drivers/xen/pvcalls-back.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c index 156e5aea36db..b1092fbefa63 100644 --- a/drivers/xen/pvcalls-back.c +++ b/drivers/xen/pvcalls-back.c @@ -416,7 +416,7 @@ static int pvcalls_back_connect(struct xenbus_device *dev, sock); if (!map) { ret = -EFAULT; - sock_release(map->sock); + sock_release(sock); } out: -- 2.15.1
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